NTP over DRM: http://hireme.geek.nz/NTP.html
 

NTP over DRM: http://hireme.geek.nz/NTP.html

NTP over DRM: http://hireme.geek.nz/NTP.html
 

Max Power wrote:
NTP over DRM: http://hireme.geek.nz/NTP.html


I've just looked at the DAB and DRM specifications, and they both allow the
time to be broadcast.



--
Steve - www.digitalradiotech.co.uk - Digital Radio News & Info

Find the cheapest Freeview & DAB prices:
http://www.digitalradiotech.co.uk/fr..._receivers.php
http://www.digitalradiotech.co.uk/dab/dab_radios.php

NTP over DRM: http://hireme.geek.nz/NTP.html
 

DAB sounds worse than FM wrote:
Max Power wrote:
NTP over DRM: http://hireme.geek.nz/NTP.html


I've just looked at the DAB and DRM specifications, and they both allow the
time to be broadcast.

:-) So does GSM, GPS, DVB-T etc.

gr, hwh

NTP over DRM: http://hireme.geek.nz/NTP.html .2
 

Yes, but a BCD Time and Date is transmitted -- not NTP.
NTP is a proven workhorse for time signal distribution -- and can be
implemented beyond the WWW.

"DAB sounds worse than FM" dab.is@dead wrote in message
...
Max Power wrote:
NTP over DRM: http://hireme.geek.nz/NTP.html

I've just looked at the DAB and DRM specifications, and they both allow
the time to be broadcast.

NTP over DRM: http://hireme.geek.nz/NTP.html .2
 

Max Power wrote:
Yes, but a BCD Time and Date is transmitted -- not NTP.
NTP is a proven workhorse for time signal distribution -- and can be
implemented beyond the WWW.


Why would it be advantageous to adopt this NTP when they already broadcast
the time?


--
Steve - www.digitalradiotech.co.uk - Digital Radio News & Info

Find the cheapest Freeview & DAB prices:
http://www.digitalradiotech.co.uk/fr..._receivers.php
http://www.digitalradiotech.co.uk/dab/dab_radios.php

NTP over DRM: http://hireme.geek.nz/NTP.html .2
 

In article ,
"Max Power" writes:
Yes, but a BCD Time and Date is transmitted -- not NTP.
NTP is a proven workhorse for time signal distribution -- and can be
implemented beyond the WWW.

NTP has a long history of being able to adapt to or translate
strange formats.

The important questions are how accurate is the time and what does
it cost for the gear to receive it?

--
These are my opinions, not necessarily my employer's. I hate spam.

NTP over DRM: http://hireme.geek.nz/NTP.html .2
 

Max,

NPR currently uses NTP to synchronize the local broadcast time to the
satellite feed. The crucial issue is to encapsulate the compressed audio
in IP packets, not the other way around. I suspect PBS might do the same
thing as well, as their programs start time deltas are be in the low
milliseconds relative to UTC. The DRM page cited is riddled with errors.
Somebody (me?) should send a comprehensive bug report.

Dave

Max Power wrote:

Yes, but a BCD Time and Date is t deltasansmitted -- not NTP.
NTP is a proven workhorse for time signal distribution -- and can be
implemented beyond the WWW.

"DAB sounds worse than FM" dab.is@dead wrote in message
...

Max Power wrote:

NTP over DRM: http://hireme.geek.nz/NTP.html

I've just looked at the DAB and DRM specifications, and they both allow
the time to be broadcast.

NTP over DRM: http://hireme.geek.nz/NTP.html .2
 

In article , Kristoff Bonne writes:

Kristoff My guess, the problem is that any time-system needs some way to
Kristoff determine the time-delay between the transmittor and the
Kristoff receiver. Over a bidirectional IP-network the NTP protocol does
Kristoff work very well, but over a broadcasting-network -which is
Kristoff unidirectional by nature- it's a different story.

ntp has a "broadcastdelay" parameter for this very case. It won't help you
figure out the delay, but it will compensate by its value.

H